286 DRYIOSUS, SOUTH AMERICAN. 



finally the introduction of red in some specimens produces further 

 patterns, appearing usually as a columellar patch, sometimes also as 

 a band below the periphery between two dark bands, and sometimes 

 generally spread in bands and oblique streaks upon the body whorl, 

 the blackish bands subobsolete. Surface glossy, showing slight 

 growth-lines and faint, fine spiral striation. Spire straightly conic, 

 apex slightly obtuse, If earlier whorls with typical Drymceus sculp- 

 ture. Whorls 6 2-7, somewhat convex. 



Aperture quite oblique, ovate, less than half the shell's length, 

 colored within like the outside ; peristome thin and acute, unex- 

 panded ; columella concave, straightened above, the margin broadly 

 dilated above and reflexed. 



Alt. 30, diam. 14 ; alt. of aperture 14 mill. 



Alt. 33, diam. 16 ; alt. of aperture 15 mill. 



Province of Motto Grosso, Brazil, west to the eastern foothills of the 

 Bolivian Andes, south to the Sierra de Catamarca, Argentina. 



Helix (Coehlogena) pcecila ORB., Mag. de Zool., 1835, p. 11 ; 

 Voy. Araer. Merid., pi. 31, f. 1-10. Bulimus pcecilus ORB., Voy., 

 p. 268. PFEIFFER, Monogr., ii, p. 200 ; iii, p. 420 ; iv, p. 481 ; vi, 

 p. 128. REEVE, Conch. Icon., pi. 16, f. 91. PARAVICINI, Boll. 

 Mus. Zool. ed Anat. Comp. Univ. Torino, ix, no. 181, p. 6. ? Lu- 

 BOMIRSKI, P. Z. S., 1879, p. 725 (see below). Bulinus pcecilus 

 SOWB., Conch. Illustr., f. 68, 69. Bullums prcscilus ANTON, Ver- 

 zeichniss, p. 41. Bulimulus pcecilus BECK, Index Moll., p. 65. 

 ANCEY, Journ. of Conch., Leeds, vii, p. 92 ; Boll. Mus. Zool. ed 

 Anat. Comp. Torino, xii, no. 309, p. 5, 12 (1897) MARTENS, 

 Conchol. Mittheil., ii, p. 13, pi. 40, f. 1-5. Otostomus (Mesembri- 

 nits) pcecilus Orb., DOERING, Bol. Acad. Nacional. Cien. Rep. Ar- 

 gent,, iii, p. 76 (1879). 



Bulimus pictus BONNET, Rev. et Mag. de Zoologie, (2), xvi, p. 

 69, pi. 5, f. 4-6, pi. 6, f. 1 (March, 1864).? Bulimus pictus PFR., 

 P. Z. S., 1854, p. 58 ; Monographia, iv, p. 483. 



D'Orbigny distinguishes two varieties: major, alt. 35, diam. 18 

 mill., inhabiting the valleys of the easternmost foot hills of the 

 Bolivian Andes before descending to the plains of Santa Cruz de la 

 Sierra, especially at the bridge of Tasajos and the town Pampa 

 Grande, on the plains bordering the river Pampa Grande. Var. 

 in! nor, alt. 28, diam. 16 mill, has also special localities for its several 

 subvarietal forms. That with 7 distinct bands belongs in the great 



